Case Study: PRESTO A85t Process system
Cooling a Büchiglas 50 l reactor from +20 °C to lowest possible temperature with a PRESTO A85t Process system
Objective
This case study tests the lowest temperature of the JULABO PRESTO A85t Process system with a 50 l glass reactor. The PRESTO A85t is connected to the reactor via two 2 in. metal hoses. The PRESTO A85t Process system cools from +20 °C to -73 °C maximum low temperature.
Test Conditions
| Product | PRESTO A85t Process system | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cooling capacity (Ethanol)
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| Heating capacity | 15 kW | ||||||||||||||||
| Pump pressure | 7.3 psi | ||||||||||||||||
| Duration | 6:30 hr:min | ||||||||||||||||
| Test volume | 50 l | ||||||||||||||||
| Setpoint 1 | +20 °C | ||||||||||||||||
| Setpoint 2 | -85 °C | ||||||||||||||||
| Reactor | 50l Büchiglas (glass) | ||||||||||||||||
| Tubing length | 2 in. | ||||||||||||||||
| Fluid in unit | Thermal HL80 | ||||||||||||||||
| Fluid in reactor | Thermal HL80 | ||||||||||||||||
Environment
| Room temperature | 20 °C |
|---|---|
| Humidity | 45 % |
| Voltage version | 400V/3PNPE/50Hz |
Control Parameters
| XP | 0.2 K |
| TN | 720 s |
| TV | 100 s |
| XPU | 24 K |
Test Results
The PRESTO A85t Process system cools the reactor from +20 °C to the lowest temperature of -73 °C in 6:30 h.
| Set point |
| Temperature in the application |
| Temperature in temperature control unit |